diff options
Diffstat (limited to 'bfd/elf32-sh.c')
| -rw-r--r-- | bfd/elf32-sh.c | 120 |
1 files changed, 118 insertions, 2 deletions
diff --git a/bfd/elf32-sh.c b/bfd/elf32-sh.c index ea5bd9f..ea0426e 100644 --- a/bfd/elf32-sh.c +++ b/bfd/elf32-sh.c @@ -1,5 +1,5 @@ /* Hitachi SH specific support for 32-bit ELF - Copyright 1996, 1997, 1998, 1999 Free Software Foundation, Inc. + Copyright 1996, 97, 98, 1999, 2000 Free Software Foundation, Inc. Contributed by Ian Lance Taylor, Cygnus Support. This file is part of BFD, the Binary File Descriptor library. @@ -33,6 +33,14 @@ static reloc_howto_type *sh_elf_reloc_type_lookup PARAMS ((bfd *, bfd_reloc_code_real_type)); static void sh_elf_info_to_howto PARAMS ((bfd *, arelent *, Elf_Internal_Rela *)); +static boolean sh_elf_set_private_flags + PARAMS ((bfd *, flagword)); +static boolean sh_elf_copy_private_data + PARAMS ((bfd *, bfd *)); +static boolean sh_elf_merge_private_data + PARAMS ((bfd *, bfd *)); +boolean sh_elf_set_mach_from_flags + PARAMS ((bfd *)); static boolean sh_elf_relax_section PARAMS ((bfd *, asection *, struct bfd_link_info *, boolean *)); static boolean sh_elf_relax_delete_bytes @@ -2087,6 +2095,109 @@ sh_elf_check_relocs (abfd, info, sec, relocs) return true; } +boolean +sh_elf_set_mach_from_flags (abfd) + bfd * abfd; +{ + flagword flags = elf_elfheader (abfd)->e_flags; + + switch (elf_elfheader (abfd)->e_flags & EF_SH_MACH_MASK) + { + case EF_SH1: + bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh); + break; + case EF_SH2: + bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh2); + break; + case EF_SH_DSP: + bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh_dsp); + break; + case EF_SH3: + bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh3); + break; + case EF_SH3_DSP: + bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh3_dsp); + break; + case EF_SH3E: + bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh3e); + break; + case EF_SH_UNKNOWN: + case EF_SH4: + bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh4); + break; + default: + return false; + } + return true; +} + +/* Function to keep SH specific file flags. */ +static boolean +sh_elf_set_private_flags (abfd, flags) + bfd * abfd; + flagword flags; +{ + BFD_ASSERT (! elf_flags_init (abfd) + || elf_elfheader (abfd)->e_flags == flags); + + elf_elfheader (abfd)->e_flags = flags; + elf_flags_init (abfd) = true; + return sh_elf_set_mach_from_flags (abfd); +} + +/* Copy backend specific data from one object module to another */ +static boolean +sh_elf_copy_private_data (ibfd, obfd) + bfd * ibfd; + bfd * obfd; +{ + if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour + || bfd_get_flavour (obfd) != bfd_target_elf_flavour) + return true; + + return sh_elf_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags); +} + +/* This routine checks for linking big and little endian objects + together, and for linking sh-dsp with sh3e / sh4 objects. */ + +static boolean +sh_elf_merge_private_data (ibfd, obfd) + bfd *ibfd; + bfd *obfd; +{ + flagword old_flags, new_flags; + + if (_bfd_generic_verify_endian_match (ibfd, obfd) == false) + return false; + + if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour + || bfd_get_flavour (obfd) != bfd_target_elf_flavour) + return true; + + if (! elf_flags_init (obfd)) + { + elf_flags_init (obfd) = true; + elf_elfheader (obfd)->e_flags = 0; + } + old_flags = elf_elfheader (obfd)->e_flags; + new_flags = elf_elfheader (ibfd)->e_flags; + if ((EF_SH_HAS_DSP (old_flags) && EF_SH_HAS_FP (new_flags)) + || (EF_SH_HAS_DSP (new_flags) && EF_SH_HAS_FP (old_flags))) + { + (*_bfd_error_handler) + ("%s: uses %s instructions while previous modules use %s instructions", + bfd_get_filename (ibfd), + EF_SH_HAS_DSP (new_flags) ? "dsp" : "floating point", + EF_SH_HAS_DSP (new_flags) ? "floating point" : "dsp"); + bfd_set_error (bfd_error_bad_value); + return false; + } + elf_elfheader (obfd)->e_flags = EF_SH_MERGE_MACH (old_flags, new_flags); + + return sh_elf_set_mach_from_flags (obfd); +} + #define TARGET_BIG_SYM bfd_elf32_sh_vec #define TARGET_BIG_NAME "elf32-sh" #define TARGET_LITTLE_SYM bfd_elf32_shl_vec @@ -2103,8 +2214,13 @@ sh_elf_check_relocs (abfd, info, sec, relocs) #define elf_backend_relocate_section sh_elf_relocate_section #define bfd_elf32_bfd_get_relocated_section_contents \ sh_elf_get_relocated_section_contents +#define elf_backend_object_p sh_elf_set_mach_from_flags +#define bfd_elf32_bfd_set_private_bfd_flags \ + sh_elf_set_private_flags +#define bfd_elf32_bfd_copy_private_bfd_data \ + sh_elf_copy_private_data #define bfd_elf32_bfd_merge_private_bfd_data \ - _bfd_generic_verify_endian_match + sh_elf_merge_private_data #define elf_backend_gc_mark_hook sh_elf_gc_mark_hook #define elf_backend_gc_sweep_hook sh_elf_gc_sweep_hook |